Starting off with number five on my list, we have 'My Lovely Wife' by Samantha Downing. 

In this story you're following a couple who has been married for 15 years and things are starting to get a little bit boring and so to spice it up they murder people together. They look like a normal couple on the outside, but secretly they are luring in victims and knocking them off one by one until eventually it looks like they're about to get caught and things get tense.

This book is particularly most reminiscent of season three of the show 'You', if you're caught up on multiple seasons, this one reminds me most of that one because in this story you are following more than just one evil person, you're following two evil people. 

I won't give any spoilers away in case you're not caught up on all the seasons of the show, but if you're interested in seeing the dynamics between a married couple who is committing these horrible acts together, this is the book for you.

In my number four position is 'Bath Haus' by PJ Vernon. In this story you're following Oliver Park who is a recovering drug addict who has finally felt like he made a good life for himself, he's in love with this guy named Nathan who is a successful surgeon, and it seems like his life is on the right track.

One day he decides to visit this gay bath house called haus, and when he goes there he ends up getting into a dangerous situation where another guy comes onto him a little bit too strong, and kind of seems like he's trying to kill him. 

Oliver barely escapes with his life, he goes home with bruises all around his neck but he knows he cannot disrupt this perfect relationship he's gotten himself into. This leads to a series of lies that he ends up telling Nathan in order to try to hide what's going on, when the man from this bath house becomes a little too obsessed with him and threatens to ruin his perfect life.

This is a really fun runaway train type story where things just keep getting worse and worse, just like they do in the show 'You'. There's also an element of obsession, relationships, lies, deceit and all the things that makes 'You' so twisty and fun to watch .